[R] missing data and completed missing data

[Frank E Harrell Jr]

On Mon, 22 Dec 2003 16:55:58 -0500
"Raphael Schoenle" <schoenle at fas.harvard.edu> wrote:

> Hi,
>  
> This is not exactly an R request, but does anyone know of a good dataset
> that contains missing and missing data that have been completed later
> (like from persistent in-person interview attempts)? (want it for some
> Bayesian regression analysis)
>  
> Thanks!!
>  
> -Raphael
> 
> 	[[alternative HTML version deleted]]
> 
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Not quite, but see

@Article{eng03imp,
  author =               {Engels, Jean Mundahl and Diehr, Paula},
  title =                {Imputation of missing longitudinal data: a
comparison of methods},
  journal =      J Clinical Epidemiology,
  year =                 2003,
  volume =               56,
  pages =                {968-976},
  annote =               {longitudinal data;repeated
measures;within-subject
imputation vs. using baseline data vs. population group;natural
experiment that solved problems of simulated data because used real
data with real missingness pattern with known true value;true value
was a value observed after a missing response at a certain time, which
was made to be artificially missing;most subjects had such
measurements really missing;gold standard was ability to reproduce the
known value, not performance in the final response model (or group
comparison);LOCF;longitudinal imputation;next observation carried
backward}

---
Frank E Harrell Jr   Professor and Chair           School of Medicine
                     Department of Biostatistics   Vanderbilt University